Phaseolus lunatus, commonly known as the lima bean or butter bean, is a legume in the family Fabaceae. It is native to Central and South America and thrives in seasonally dry tropical climates. The plant can be an annual or perennial and has a scrambling growth habit. It is known for its edible seeds, which are a staple in many cuisines.
Lima beans require bright, direct sunlight for optimal growth. They thrive in warm temperatures and moderate humidity. Regular watering is necessary, but the soil should be allowed to dry out partially between waterings. The plant prefers a seasonally dry tropical climate and can be grown outdoors in suitable hardiness zones.
収穫
Phaseolus lunatus, commonly known as lima bean, should be harvested when the pods are plump and the seeds inside have fully developed but are still tender. This typically occurs about 75 days after planting. To harvest, gently pull the pods from the plant, being careful not to damage the vines. For dry beans, allow the pods to mature and dry on the plant before harvesting. Ensure the beans are fully dry before storage to prevent mold and spoilage.
土壌
Lima beans prefer well-draining loamy soil with a slightly acidic to neutral pH. The soil should be kept moderately moist but not waterlogged. Good drainage is essential to prevent root rot and other moisture-related issues.
肥料
A balanced fertilizer with a nutrient composition of 5-10-10 is recommended for lima beans. Fertilize the plants at the beginning of the growing season and again when they start to flower. Avoid over-fertilizing, as this can lead to excessive foliage growth at the expense of pod production.
植え替え
If growing lima beans in containers, repotting may be necessary if the plant outgrows its pot. Choose a larger container with good drainage and fresh potting mix. Repotting is best done in the early growing season to minimize stress on the plant.
伝搬
Lima beans are typically propagated by seeds. Sow the seeds directly in the garden or in containers after the last frost date. Plant the seeds about 1 inch deep and space them 4-6 inches apart. Germination usually occurs within 7-10 days.
剪定
Pruning is beneficial for lima beans to encourage bushier growth and improve air circulation. Remove any dead or diseased leaves and trim back excessive growth to maintain the plant's shape. Pruning can be done throughout the growing season as needed.
毒性
Lima beans are not toxic to pets or humans when properly cooked. However, raw lima beans contain linamarin, a compound that can release cyanide when consumed. It is essential to cook the beans thoroughly to eliminate any potential toxicity.
追加
Lima beans are nitrogen-fixing plants, which means they can improve soil fertility by converting atmospheric nitrogen into a form that plants can use. This makes them a valuable addition to crop rotation systems. Additionally, providing support such as trellises can help manage the plant's scrambling growth habit.